Cranial Nerves Flashcards
(94 cards)
1
Q
What is the innervation of the Inferior oblique muscle?
A
inferior ramus of the oculomotor n.
2
Q
What is the innervation of the Inferior rectus muscle?
A
inferior ramus of the oculomotor n.
3
Q
What is the innervation of the Levator palpebrae superioris muscle?
A
superior ramus of the oculomotor n.
4
Q
What is the innervation of the Medial rectus muscle?
A
inferior ramus of the oculomotor n.
5
Q
What is the innervation of the superior rectus muscle?
A
superior ramus of the oculomotor n.
6
Q
What is the innervation of the Lateral rectus muscle?
A
abducens n.
7
Q
What is the innervation of the Superior oblique muscle?
A
trochlear n.
8
Q
Which nerves come off the Cerebrum?
A
Olfactory (CN I)
Optic (CN II)
9
Q
Which nerves come off the Midbrain?
A
Oculomotor (CN III)
Trochlear (CN IV)
10
Q
Which nerves come off the Pons?
A
Trigeminal (CN V)
Abducens (CN VI)
Facial (CN VII)
Vestibulocochlear (CN VIII)
11
Q
Which nerves come off the Medulla?
A
Glossopharyngeal (CN IX)
Vagus (CN X)
Hypoglossal (CN XII)
12
Q
Which nerve comes off the spinal cord?
A
Accessory (CN XI)
13
Q
Which functions does Olfactory (CN I) have?
A
sensory
14
Q
Which functions does Optic (CN II) have?
A
sensory
15
Q
Which functions does Oculomotor (CN III) have?
A
motor and parasympathetic
16
Q
Which functions does Trochlear (IV) have?
A
motor
17
Q
Which functions does Trigeminal (V) have?
A
sensory and motor
18
Q
Which functions does Abducens VI have?
A
motor
19
Q
Which functions does facial VII Have?
A
sensory, motor, parasympathetic
20
Q
Which functions does vestibulocochlear VIII have?
A
sensory
21
Q
Which functions does glossopharyngeal IX have?
A
sensory, motor, parasympathetic
22
Q
Which functions does vagus X have?
A
sensory, motor, parasympathetic
23
Q
Which functions does accessory XI have?
A
motor
24
Q
Which functions does hypoglossal XII have?
A
motor
25
Oculomotor nucleus and Edinger Westphal nucleus are of what cranial nerve?
Oculomotor CN III
26
Trochlear nucleus is of what cranial nerve?
Trochlear CN IV
27
Trigeminal motor nucleus is of what cranial nerve?
Mandibular of Trigeminal CN V3
28
Abducens nucleus is of what cranial nerve?
Abducens CN VI
29
Facial motor nucleus and superior salivatory nucleus are of what cranial nerve?
Facial CN VII
30
CN I (Olfactory) exits the skull via what opening?
Cribiform foramina
31
Which cranial nerves exit the skull via the superior orbital fissure?
CN IV (Trochlear), CN V1 (Ophthalmic of Trigeminal), and CN VI (Abducens)
32
What are the axon functions of the Olfactory?
sensory (smell)
33
What are the axon functions of the Optic?
sensory (vision)
34
What are the axon functions of the Oculomotor?
Motor and pre-parasympathetic
35
What are the axon functions of the Trochlear?
motor
36
What are the axon functions of the Trigeminal Opthalmic?
sensory
37
What are the axon functions of the Trigeminal Maxillary?
sensory
38
What are the axon functions of the Trigeminal Mandibular?
Branchial motor and sensory
39
What are the axon functions of the Abducens?
motor
40
Explain branchial motor
Branchial motor- goes to muscles, these muscles derived from a subset of cells called pharyngeal arches
41
What are the axon functions of the Facial?
Branchial motor, Pre-parasympathetic, sensory, taste
42
What are the axon functions of the Vestibulocochlear?
Sensory- equilibrium and hearing
43
What are the axon functions of the Glossopharyngeal?
```
Branchial motor
pre-parasympathetic
sensory
sensory, visceral
taste
```
44
What are the axon functions of the Vagus?
```
Branchial motor
pre-parasympathetic
sensory
sensory, visceral
taste
```
45
What are the axon functions of the Accessory?
motor
46
What are the axon functions of the Hypoglossal?
motor
47
Which nerves exit from the cribirform foramina of the skull?
olfactory
48
Which nerves exit from the optic canal of the skull?
optic
49
Which nerves exit from the superior orbital fissure of the skull?
oculomotor
trochlear
trigeminal- ophthalmic
abducens
50
Which nerves exit from the foramen rotundum of the skull?
trigeminal maxillary
51
Which nerves exit from the foramen ovale of the skull?
trigeminal mandibular
52
Which nerves exit from the internal auditory meatus of the skull?
facial
| vestibulocochlear
53
Which nerves exit from the internal auditory meatus and stylomastoid foramen of the skull?
Facial- branchial motor
54
Which nerves exit from the jugular foramen of the skull?
Glossopharyngeal
Vagus
Acccessory
55
Which nerves exit from the hypoglossal canal of the skull?
hypoglossal
56
What is the Peripheral structures/distribution of the Olfactory nerve?
Olfactory mucosa of nose
57
What is the Peripheral structures/distribution of the Optic nerve?
Retina of eye
58
What is the Peripheral structures/distribution of the Oculomotor nerve?
LPS, SR, MR, IR, IO (motor)
| Ciliary bodies/muscle (accom), sphincter pupillae of iris (constriction) (pre-para)
59
What is the Peripheral structures/distribution of the Trochlear nerve?
Superior Oblique
60
What is the Peripheral structures/distribution of the Trigeminal, Ophthalmic nerve?
Skin, lacrimal gland (yes!), nasal cavity, conjunctiva, cornea
61
What is the Peripheral structures/distribution of the Trigeminal, Maxillary nerve?
Skin mid face, teeth, mucous membranes upper mouth palate, nasopharynx
62
What is the Peripheral structures/distribution of the Trigeminal, Mandibular- branchial motor nerve?
Mm. mastication, mylohyoid, ant digastric, tensor tympani, tensor veli palatini (1st pharyngeal arch derivatives)
63
What is the Peripheral structures/distribution of the Trigeminal, Mandibular- sensory nerve?
Skin low face, tongue, mouth, mand teeth, ear
64
What is the Peripheral structures/distribution of the Abducens nerve?
Lateral rectus
65
What is the Peripheral structures/distribution of the Facial-branchial motor nerve?
Mm. facial expression, stapedius, post digastric, stylohyoid (2nd pharyngeal arch)
66
What is the Peripheral structures/distribution of the Facial-prepara nerve?
Lacrimal & mucosa glands of nasal cav, paranasal sinuses, roof of mouth, soft palate, nasopharynx (pterygo), submandib, sublingual glands (submandib gang)
67
What is the Peripheral structures/distribution of the Facial-sensory nerve?
Palate, skin posterior ear, ext audit meat, tymp membrane, facial mm proprioception
68
What is the Peripheral structures/distribution of the Facial-taste nerve?
Anterior 2/3 tongue
69
What is the Peripheral structures/distribution of the Vestibulocochlear-equilibrium nerve?
Hair cells of ampullary crests in semicircular ducts, maculae of saccule/utricle
70
What is the Peripheral structures/distribution of the Vestibulocochlear-hearing nerve?
Hair cells of spiral organ (of Corti)
71
What is the Peripheral structures/distribution of the Glossopharyngeal-branchial nerve?
Stylopharyngeus, sup pharyngeal constrictor (3rd pharyngeal arch)
72
What is the Peripheral structures/distribution of the Glossopharyngeal-prepara nerve?
Parotid gland
73
What is the Peripheral structures/distribution of the Glossopharyngeal-sensory nerve?
Sensory post 1/3 tongue, oropharynx, mid ear, tonsil bed
74
What is the Peripheral structures/distribution of the Glossopharyngeal-sensory visceral nerve?
Chemo (pO2/CO2) and baro (mmHG) from carotid sinus / body
75
What is the Peripheral structures/distribution of the Glossopharyngeal-taste nerve?
Taste post 1/3 of tongue
76
What is the Peripheral structures/distribution of the Vagus-Branchialmotor nerve?
Mm pharynx, intrinsic larynx, palate, upper 2/3s esophagus (4th pharyngeal arch) Cricothyroid, Levator veli palatini, Salpingopharyngeus, Palatoglossus, Palatopharyngeus, Superior, middle and inferior pharyngeal constrictors
77
What is the Peripheral structures/distribution of the Vagus-prepara nerve?
Smooth musc viscera up to splenic flexure
78
What is the Peripheral structures/distribution of the Vagus-sensory nerve?
Skin ear, ext audit meatus, dura posterior cranial fossa
79
What is the Peripheral structures/distribution of the Vagus-sensory visceral nerve?
Aortic arch, thorax and abdom viscera
80
What is the Peripheral structures/distribution of the Vagus-taste nerve?
Epiglottis, palate
81
What is the Peripheral structures/distribution of the Accessory nerve?
SCM, trapezius
82
What is the Peripheral structures/distribution of the Hypoglossal nerve?
Styloglossus, hyoglossus, genioglossus, intrinsic mm. of tongue (except palatoglossus)
83
What is the Olfactory nerve cells of origin?
Nasal mucosa
84
What is the optic nerve cells of origin?
ganglion cells retina
85
What is the oculomotor nerve cells of origin?
oculomotor
| edinger westphal
86
What is the trochlear nerve cells of origin?
trochlear (post + contralateral)
87
What is the trigeminal nerve cells of origin?
```
trigeminal ganglion
trigeminal motor (mandibular also)
```
88
What is the abducens nerve cells of origin?
abducens
89
What is the facial nerve cells of origin?
Facial motor
Sup salivatory
Geniculate
90
What is the vestibulocochlear nerve cells of origin?
Vestibular ganglion
| Spiral ganglion
91
What is the glossopharyngeal nerve cells of origin?
```
Nucleus ambiguus-motor
Inferior salivatory- prepara
Inferior ganglion
Superior ganglion
Inferior ganglion
```
92
What is the vagus nerve cells of origin?
```
Nucleus ambiguus
Dorsal motor
Superior ganglion
Inferior ganglion
Inferior ganglion
```
93
What is the accessory nerve cells of origin?
Ventral horn (C1-5)
94
What is the hypoglossal nerve cells of origin?
hypoglossal
